AD2S1200

AD2S1200 IIO Resolver-to-Digital Converter.

Supported Devices

Evaluation Boards

Description

Product Page

This is a Linux industrial I/O (Linux Industrial I/O Subsystem) subsystem driver, targeting Resolver-to-Digital Converters. The industrial I/O subsystem provides a unified framework for drivers for many different types of converters and sensors using a number of different physical interfaces (i2c, spi, etc). See Linux Industrial I/O Subsystem for more information.

Source Code

Status

Source	Mainlined?
git	Yes

Files

Function	File
driver	drivers/staging/iio/resolver/ad2s1200.c

Adding Linux driver support

Configure kernel with make menuconfig (alternatively use make xconfig or make qconfig)

Note

The Driver depends on CONFIG_SPI

Linux Kernel Configuration
    Device Drivers  --->
        [*] Staging drivers  --->
            <*>     Industrial I/O support --->
                --- Industrial I/O support
                -*-   Enable ring buffer support within IIO
                -*-     Industrial I/O lock free software ring
                -*-   Enable triggered sampling support

                      *** Resolver to digital converters ***
                [--snip--]

                <*>   Analog Devices AD2S120x driver

                [--snip--]

Driver Usage

The device file path may looks like,

/sys/devices/platform/bfin-spi.0/spi0.3/iio/device0/ad2s120x>

There are two files:

File Name	Permission	Usage
pos_vel	read only	12 bits unsigned angular value and 12 bits signed velocity value
pos	read only	12 bits unsigned angular value
vel	read only	12 bits signed velocity value
description	read only	description about this chip